There were some comments that "Speed Dial" was not exported,- that's not true,it will be exported but could be re-named,- this depends on the Opera version.If you have folders inside folders, they will be moved to the "root" folder.

When importing, it will import to a new folder called "Imported Bookmarks",which can then be managed as desired. One can verify the number of itemsthat were imported / exported, by reading the item count after an import / export.

*Developer of this extensions is not responsible for data loss.Please check out my other extension "New Tab Start Page Pro".